Vatican reveals the complex system that will signal a new pope

Chimney installed atop Sistene Chapel will signal next pope Firefighters installed a new chimney onto the Sistine Chapel. The chimney will signal to the outside world when a new pope has been elected. Stoves used in a complex, but not quite ancient, tradition have arrived in the Sistine Chapel in Rome. In a few days, they will be used to generate smoke that will mark the progress of the conclave in its mission to choose a new pope. Workers have been preparing for the meeting of cardinals, set to